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The temperature (t^@C) at a depth x km b...

The temperature `(t^@C)` at a depth x km below the surface of the earth is given by
`t=32+25(x-3)` where`3lexle15`.
Find the range of depth when temperature is between `207^@C` and `282^@C`.

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The correct Answer is:
Between 10 km and 13 km
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